Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual era a pista de Christian Kubusch quando o calor era superior a 2 e o tempo era DNS?
 ###Tabelas: CREATE TABLE ratings (ratings_id AUTO_INCREMENT PRIMARY KEY, Air Date VARCHAR, Timeslot (EST) VARCHAR, Season VARCHAR, Rating INT, Share INT, 18-49 (Rating/Share) VARCHAR, Viewers (m) INT, Weekly Rank (#) VARCHAR) CREATE TABLE deficit_spending (deficit_spending_id AUTO_INCREMENT PRIMARY KEY, End of Fiscal Year INT, Gross Debt in $Billions undeflated Treas. INT, as % of GDP Low-High VARCHAR, Debt Held By Public ($Billions) INT, as % of GDP (Treas/MW, OMB or OMB/MW) INT, GDP $Billions OMB/BEA est.=MW.com VARCHAR) CREATE TABLE heats (heats_id AUTO_INCREMENT PRIMARY KEY, Heat INT, Lane INT, Name VARCHAR, Nationality VARCHAR, Time VARCHAR) CREATE TABLE use (use_id AUTO_INCREMENT PRIMARY KEY, EDO Flight INT, Shuttle VARCHAR, Mission VARCHAR, Launch Date VARCHAR, Duration VARCHAR, Primary Payload(s) VARCHAR) CREATE TABLE elections_to_congress_of_deputies (elections_to_congress_of_deputies_id AUTO_INCREMENT PRIMARY KEY, Election number INT, Election date VARCHAR, District VARCHAR, Province VARCHAR, Took office VARCHAR, Left office VARCHAR)  
SELECT SUM Lane FROM heats WHERE Time = dns AND Name = christian kubusch AND Heat > 2